Binding-post for electric terminals.



A. B. SIMPSON.

I BINDING POST FOR EEBCTRIG TERMINALS. APPLICATION PiLED NOV. 29, 1912. 1,090,881.

I Patented M31124, 1914.

. mom/F To all whom it may concern llllllilll iclllllllfiid lWtIil ldlllillll .ALEXANDER B. SIMPSQN, 01 JELEWEY CITY, NEW JERSEY.

BIIIhIDING -I-QET IFQH, ELECTRIC 'lEHldlNALi-E.

Application filed November 29, 1912. Serial No. 77931152.

lie it known that I, ALEXANDER l3. SIMP- con u citizen of theUnited States, residing in .l ersey City, county of Hudson, and State of New Jersey, have invented a new and useful Improvement in B nding-Posts for Electric Terminals, of which the following is a. specification.

My invention consists of an improvement on the ordinary binding posts for connectingwires to the terminals of electric batteries and other sources or carriers of an electric current.

The binding post more commonly used consists of a fixed screw carrying a binding nut for chunpin u the wire between it'and the metallic base of the post or suitable washers therebetween. W'lth this style of binding post it is often dificult to prevent the wire from slipping out from between the, binding-nut end base or-the interposed washer or washers, when the nut is being screwed home or after it is screwed home, and the nut often works loose so as to break the circuit. In my invention, it provide a. folded lllilre strip of pliable conducting metal, one arm of which is fixed to and in contact with the terminal by a binding post, which passes through both arms of the folded strip and has a, nut thereon binding said inner armagainst the terminal and also an ordinary binding'nut outside the outer ll-l'nl to bind the wire paesin between ll'ms end the binding post tightly between said arms and thus to the binding poet und terriiiual. In connecting a. wire to the binding nut thus fittedthe naked end of the wire is inserted loosely, through the closed end of the lllikeetrip, inside the threaded post, as an eye or keeper, or-

through a suitable aperture in one of'the arms of the li like strip, and the wire is then usually bent or twisted around the binding post between the arme of the U like strip. lhe binding nut is then screwed up tightly on the post, closing up the outer arm of the U like strip and securely binding and con-- necting the wire thereby to the terminal.

l shall describe in detail the mode in which my invention is carried-into prectice, and then distinctly point out the invention in the claim.

'iIilteference is to be had to the eccomganying drawings forming part of this spemficahpecification of Letters Patent. Paten lee Illa-r. he, oin.

tion, in which like parts are designated by the same numbers in all the figures.

Figure l is a sectional view illustrating the terminals of a battery to which one form oi my improvement has been applied. Fig. 2 is a perspective view of the larger U like connecting strip shownin. Fig. 1. Fig. 3 is a side elevation ofthe form of my improvement shown in Fig. 1. Fig. 4: is a per spective view of the smaller U like connecting strip shown in Fig. 1. Fig. 5 is a sectional view of a modified form of my invention. Figs. 6 and 'Z are perspective views of the modified form of my invention shown in Fig. 5. i

In all the figures, 10 designates the carbon terminal of an ordinary battery, and 11 the zinc terminal thereof, this type of battery being selected merely plication of my invention.

In Figs. 1, 2 and 3, l have shown a thin strip of metal, preferably of flexible and slightly elastic brass or copper, bent to form a U, the outer arm. 12, of which is formed with a slot, 13, and theinner arm, 14, with an aperture, 1 h, in line with the slot 1.3. The inner arm 14 is in this example of my invention extended at right angles and then downward again to form the inverted U 16, the arm 18, oil which is also by preference apertured at 19 in line with the aperture 15. To apply this form of my invention to the carbon terminal 10, I slip the inverted U 16 down over the top of the carbon terminal 10, as shown in Figs. 1 and 3, and ass it screw 20 through the ager'ture 19 in tlie arm 18, e

the arm ll, and screw a nut 21 on the projecting end of the screw tightly against the arm 14 so as to secure the U strip tightly to the carbon 10. The threaded end of tlie screw 20 then passes loosely through the slot 13 in the outer preferably springing arm 12, and on its projecting end is screwed an ordinary binding nut 22, between which and the arm 12 a washer may, if desired, be interposed, as shown. To connect a wire 24. to the bind ing post thus fitted, I generally prefer to pass the naked end of the wire loosely through the eye or keeper formed by the screw or post 20 and the closed end of the ill strip, as shown in Figs. 1 and 3, and then usually but not always twist the naked wire around the screw or, post 20 between the to illustrate one aphole in the carbon and the aperture 15in same as in the case ofthe carbon terminal 2 to, of a folded strip of pliable conducting separated arms of the U-like strip. By then I tightening up the binding nut 22, the wire l is securely bound and connected between the free arm 12 of the strip and the fixed I nut 21 serving as abase; i

In-the case ofthezinc terminal 11 shown 1 in Figs. 1 and 5, the extension 25 of the U- I like strip 26 is shown straight and simply soldered to the zinc, while the screw or post 1 27 is vertical and the slot in the free arm 28 is shown open. The action and use of the 3 U'-like strip 26, however, is essentially the described.

In the modification of my invention shown l in Figs. 5 and 6, the Ulike connecting strip l 29 on the carbon terminal 10 has its outer arm 30 extendeddownward again to form an additional arm 31, inside the binding nut 22, and the naked wire 24: is shown passed through the slot 13 and between the arms 30 and 31, between which it is tightly bound 1 and secured against accidental disconnection 1 by the binding nut 22 substantially as before described. In the case of the zinc terminals shown in Figs' 5 and 7, the wire is passed i through "an aperture 32 in the U-like strip 26 before being passed between the arms of the U.

In the case of the carbon terminal, the screw QOis preferably fixed by soldering to the arm 18 (Figs. 1 and 2) or the arm 21. oi the conducting strip, to prevent the screw 20 from turning with the binding nut 22.

Having thus set forth the nature of my invention and the mode in which it is carrie into practice, I claim as in y invention:

The combination, with an clectricterininal, and a threaded binding post fixed t ere metal through both of whose arms the binding post passes, a nut screwed on said binding post outside the inner arm to land the same against the terminal, and a binding nut on said binding post outside the outer arm to bind the connecting wire between 1 said arms and the binding post, substantially as described.

ALEXANDER B. In presence o'f CLAuExc-n L. BURGER, EDWARD A, LONERGAN.

SIli'IPSON. 

